Is Cursor extremely slow for you since the 0.49 update?

Bug Reports
1

:white_check_mark: I’ve checked the forum and haven’t seen this issue reported yet.

:lady_beetle: Since updating to Cursor 0.49 (currently running version 0.49.4), the app has become extremely slow. Tool invocation now takes unusually long — sometimes over a minute — before anything happens. This lag occurs consistently across sessions.

:counterclockwise_arrows_button: Steps to reproduce:
1. Launch Cursor (version 0.49.4)
2. Attempt to use any AI tool (e.g., Sonnet 3.7 or ChatGPT-4.1)
3. Observe delay before tool becomes responsive (often > 60 seconds)

:laptop: System Info:
• Device: Mac mini (2024)
• Chip: Apple M4
• Memory: 16 GB
• OS: macOS Sequoia 15.3.2
• Cursor version: 0.49.4
• Tools used: Sonnet 3.7, ChatGPT-4.1

:prohibited: Yes, this issue significantly disrupts my workflow and makes Cursor nearly unusable.

2 Likes
2

gpt4.1, cursor 0.49.4, agent mode, win11 - a real generation starts after 2-4 secs after the prompt is entered.
For me, the cursor is extremely fast (<5 secs is nothing compared to the result it produces).

3

Interesting, so maybe it is a problem with the region… i am in europe.

4

Same issue. For me, most often it is not even responding after 60 seconds - just “Generating…”.

Cursor has become unusable after the update - but was working very well before.

In Europe.

1 Like
5

I previously reported that Cursor became extremely slow after updating to version 0.49.4, especially when invoking AI tools (sometimes delays of over 60 seconds).

The solution in my case:

I disabled referencing past chats and deactivated all MCP servers I was using (see screenshots).

After doing this, Cursor returned to normal speed and tools became responsive again.

• supabase (Tool: query)
• mem0
• browser-tools (Tools like getConsoleLogs, getNetworkErrors, runSEOAudit, etc.)
6

It’s the same for me. I use it on windows 10 though, but it is extremely slow, and crashes a lot. the last 2 updates has caused this.

1 Like
7

Same here! Its painstakingly slow after the update. Worst is - it makes my whole system unresponsive . Extremely extremely annoying. Almost unusable.

Its gets stuck forever with this light green bar that keeps looping left to right, at the top left corner (below the menu) of the IDE.

Screenshot at 2025-05-02 15-35-25
Screenshot at 2025-05-02 15-35-25409×111 4.24 KB

I am on ubuntu 24.04.2

Cursor:
Version: 0.49.6
VSCode Version: 1.96.2
Commit: 0781e811de386a0c5bcb07ceb259df8ff8246a50
Date: 2025-04-25T04:44:33.500Z
Electron: 34.3.4
Chromium: 132.0.6834.210
Node.js: 20.18.3
V8: 13.2.152.41-electron.0
OS: Linux x64 6.8.0-58-generic

1 Like
8

It is slow for me too. Not the query part, rather the entire UI is slow. I notice that light green bar that keeps looping left to right too. I been using 0.48.9, and that’s been great. However, 0.49.6 is still causing the issue for me. The UI is very laggy.

9

same…